Back for brake-shoes.



UNITED srAr-Es PA'rENT oEEIoE.

GEORGE COOK, OF ALLENDALE, NEW JERSEY, ASSIGNOR TO AMERICAN BRAKE SHOE & FONDRY COMPANY, OF MAHWAH. NEW JERSEY, .A CORPORATION OF NEW JERSEY.

BACK FOR BRAKE-SHOES.

T0 all whom t may concern Be it known that I, GEORGE Coon, a c1t1-' zen of the UnitedStates, and a resident of Allendale, in theeounty of Bergenand State of New Jersey, have made and inventedcertain new and useful Improvements in Backs for. Brakehoes, of which the following is a specification. y

My invention relates to an improvement in brake shoes, and more particularly to that typev thereof usually known and referredto as a. steel back shoe, that is, a shoe wherein is employed a backeformed of steel or wrought metal and .located at or adjacent to the rear surface of the body of theshoe, the object of lthe invention being to4 provide a shoe of this type with a removable or detachble end so arranged with relation to the steel back as tobe locked or secured against movement thereon.

A further object of the invention 1s to secure the detachable ends to the back -against movement thereon by mea-ns integral withvthe back itself or integral with the detachable ends, in order to prevent the employment of separate or additional parts, and with these and other objects in view, the invention consists incertain novel features of const-ruction yand combination' ofl parts as will be hereinafter fully described and pointed out in the claims.

In the accompanying draw-ings, Figure l p is a view in perspective of a back fora brake shoe constructed in accordance with my in vention. Fig. 2 is a sectional View of one end thereof. Fig. 3 is a view Vin perspective of a portion of a back provided with a modified form of my invention, and Fig. 4 a sectional View thereof. Fig. 5 shows one end of a back slitted in a certain way to receive and hold a detachable end, and Fig. G; a sectional view of the same showing the detachable end applied to the same. Fig. 7 is a sectional view of another modified form of back showing the detachable end secured in place against movement. Figs 8 and 9 are sectional views of several other modified forms of my invention.

Referring to the drawings, 10 represents `the back for a brake shoe, usuallyA termed a. steel back,` and formed from steel or wrought metal, and, as usual, is provided about midway its length with a key lug 111 for the purpose of attaching the completed shoe to a brakefhead, the back being formed of Specicationof Letters Patent.

the twol side pieces 12-12, and central tions or anchors 13, which, in the' lforin'as illustrated in the present drawing, are made integral with the key lug 11. The extreme ends of the back are bent upwardly to provide end stops l4--14, against which the eX- treme ends of the brake head (not shown) 'abut or fit. Detachably secured to this back are the removable ends 15-15, formed, for instance, by stamping or pressing the same out of sheet metal, as illustrated in several figures of the drawings, or formed of cast metal, as illustrated in Fig. 9,'each of these detachable ends being provided, generally speaking, with a hook or lug passing up through an opening in the back of the shoe whereby to removably secure it thereto. In shoes utilizing detachable ends, the body 16, Fig. 9, is preferably made of any of the wellknown compositions, in eontradistinction to the usual cast metal body, the detachable ends being first properly assembledwith the back l0, and the composition body then pressed or anchored to the back and between the ends l5. 'To'insure the detachable ends against movement on the back,which might ratenfedsepe. 30,1913. .Application filed May 17, 1913. Serial No. 768,199.

the composition body, I lock them'to the back lO, preferably by means formed integral either with the back itself or integral with the detachable ends.

In Figs. 1 and 2 I have shown one of the detachable ends l5' provided on its upper side with the elongation 17, slightly bent or curved upwardly at its extreme end as illustrated-at 1.8, thisportion of the end being sufficiently long to contact with the-central portion or anchor 13 of the back, thus holding the end 15 tightly in place and avoiding all danger of said end moving longitudinally on the back.

In Figs. 3 and et I have illustrated the locking means formed integral with the backitself, these means comprising the a'rm 19 formed integral with the `end stop 14, the extreme end 20 being bent over and upon thehook or lug 21 forming a part of the end stop 15, thus holding the latter tightly in position and againstmovement on the back. Instead, however, of forming the locking means integral with the end stop, I may form them integral. with the sides 12, as illustrated in Figs. 5 and 6, these sides being slitted, as illustrated at 22 and 23, and slightly bent upwardly as illustrated in' secl lock against the end stop 14, the detachable end being thus locked against movement with relation to the back.

Again, asrillustrated in section in Fig. 8, the central portion or anchor 13 may be extended, and slightly bent upwardly, as illustrated at 27, to bear against the hook portion 2l of the stop 15, the same being true of the structure illustrated in Fig. 9, wherein the removable or detachable end 28 is -formed of cast metal, the central portion or anchor 13 of the back being slightly bent up at its extreme end to bear against the def tachable end 28 and thus hold it in position against movement on the back.

In all of the above instances it will be noted that the detachable or removable end is locked or secured against any longitudinal movement on the back, the locking means being preferably formed integral either with the back or with the removable end.

lt. will be understood, of course, thatl do not limit my invention to integral means for locking the ends, nor do I intend to limit it to any particular form or construction of locking means, as other and various structures will suggest themselves to those skilled in the art whereby to ac co1nplish,the same urpose, my claim being intended to cover roadly any and all locking means whereby to hold or secure in place, and against move` ment, a detachable or removable end upon a brake shoe steel back, whereby to prevent injury to the ends of the composition body anchored to the back and between the rc movable ends. Nor do I intendto limit thc invention to any particular form of back or key lug, as such may be varied in structure as desired.

Vhat I claim is 1. A back for a brake shoe provided with detachable ends, and means for securing said ends against movementon said back when assembled therewith.

2. A back for a brake shoe comprising a hack proper and detachable ends, and means formed integral therewith for locking said ends in place on said back against movement thereon.

3. A back for a brake shoe comprising a 4. A back for a'brake shoe comprising a 4 back proper and detachable ends secured thereto, portions of said back proper impinging against said detachable ends Whereby to preventmovement of the latter on said back proper.

5. A back for a' brake shoe comprising two elements, viz., a back proper and detachable ends secured thereto, one of said elements, being elongated to impinge againsttheother whereby to prevent movement of' said detachable ends on said back proper.

6. A back for a brake shoe comprising a back proper formed withv central anchors and with openings near tlie ends thereof, removableends extending through said openings, said central anchors impinging against said removable ends whereby to hold the latter against movement on the back when assembled therewith.

7. A back for abrale shoe comprising a back proper formed with openings near its ends, removable ends formed with hooks, said hooks extending through the openings insaid back, and means connected with said back for impinging against said hooks for holding said removable ends against move.

ment on the back when assembled therewith. 8. A back for a brake shoe comprising a back proper provided with a key lug, of removable ends secured to said back, and means formed integral with said lug for impinging against said removable ends to hold the latter against movement on the back when assembled therewith.

- Signed at New York, hattan, in. the county State of New York, this 15 day of May, A. D. 1913.

. GEORGE COOK. lVitnesses A. V. WALSH, R. N. FLINT.

i Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, D. C. M

borough of Man-v of New York, and 

